I always thought the way o fioght HYDRA is to send for Captain America. So, maybe American flagfish would help? At least they like to eat algae?
Here is what the Google AI said about this when I asked, "will american flagfish eat green hydra"
AI Overview
Yes, based on multiple aquarium hobbyist reports,
American flagfish (Jordanella floridae) will readily eat green hydra.
They are known for their voracious appetite for various aquarium pests and algae, and many aquarists have found them effective at eliminating hydra infestations.
American flagfish are omnivores that naturally feed on small aquatic creatures, insect larvae, and plant matter in the wild. This diet makes hydra a natural food source for them in an aquarium setting.
Key Points on Using Flagfish for Hydra Control:
- Effective Predators: Several accounts state that a small group of flagfish can eliminate a widespread hydra population in an aquarium within a short time (e.g., a week).
- Algae Eaters: In addition to hydra, they are well known for eating tough algae types like green hair algae and black beard algae, making them a useful addition to a planted tank for pest control.
- Considerations: While effective, flagfish can be semi-aggressive, especially males, and may nip at the fins of slow-moving or long-finned tankmates. They may also nibble on softer aquarium plants if sufficient algae and other food sources are not available. They are best kept in a school with a single male, or in a tank where potential aggression is managed through adequate space and cover.
Other fish that have been reported to eat hydra include gouramis, mollies, and platies. A common chemical treatment that is considered safe for most fish and shrimp (but not all snails) is a product containing betel nut extract, often sold under the brand name No Planaria.
